What's the difference between transmitter and current source?--AI isolated barrier
AI isolated barrier
What's the difference between transmitter and current source?--AI isolated barrier 2019-07-23 What's the difference between transmitter and current source?--AI isolated barrier 173

AI isolated barrier is common connect with field instruments: two/ three-wire transmitter/current source.


The current source is an active 4~20mA signal that does not require a isolated barrier or an independent power supply for distribution.

For example: The power supply of Ex ia four-wire transmitter is provided by the IS power supply alone, and the 4-20 mA signal is the current source signal.


The transmitter is a passive 4-20 mA signal that requires a isolated barrier or an independent power supply for distribution

For example: The power supply of Ex ia 2-wire transmitter/Ex i 3-wire IS transmitter is provided by the isolated barrier, and the transmitter outputs 4-20mA current signal.


24 V independent power supply

What's the difference between transmitter and current source?--AI isolated barrier

Loop powered

What's the difference between transmitter and current source?--AI isolated barrier


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